Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat hang ke snippets" » "dat khanh ke snippets", "dat quang ke snippets", "tat thang ke snippets", "dat thong ke snippets", "dat hanh kem snippets", "dat nhung ke snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dat hang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat hang ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat hang ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.